I'm new in Java. I'm trying to make a simple chat application, with one client, but something isn't right.. cant figure it out. It gets stuck at connection (right after it) to server when trying to listen to it. Idea is simple: client sends a message, server receives it and sends it back. Please help...!
Main:
public class main {
public static void main(String[] args) {
Server Server = new Server();
Server.runServer();
Client client = new Client();
client.runForm();
}
}
Server
public class Server {
public static int SERVERA_PORTS = 5432;
private static JTextArea txtMessages;
public static void main(String[] args) {
}
public void runServer() {
//Form
JFrame frame = new JFrame();
txtMessages = new JTextArea();
JPanel pnlContent = (JPanel) frame.getContentPane();
pnlContent.setLayout(new BorderLayout());
pnlContent.add(txtMessages, BorderLayout.CENTER);
txtMessages.setEditable(false);
frame.setSize(500, 400);
frame.setLocation(100, 100);
frame.setTitle("Console");
frame.setResizable(false);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setVisible(true);
txtMessages.append("Listening!\n*************************\n");
ServerSocket serverSocket = null;
try{
serverSocket = new ServerSocket(SERVERA_PORTS);
} catch (IOException ex){
return;
}
while(true){
Socket socket = null;
try{
socket = serverSocket.accept();
System.out.println("Client: "+socket.getRemoteSocketAddress()+" connected");
InputStreamReader IntputaReaders = new InputStreamReader(socket.getInputStream());
BufferedReader BuferaReaders = new BufferedReader(IntputaReaders);
DateFormat dateFormat = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
Date date = new Date();
String msg = BuferaReaders.readLine();
System.out.println(dateFormat.format(date)+": "+msg);
//Sends back to clint
PrintStream PrintStrims = new PrintStream(socket.getOutputStream());
if(!"".equals(msg)) {
PrintStrims.println(dateFormat.format(date)+": "+msg);
}
//Puts in GUI
txtMessages.append(socket.getRemoteSocketAddress()+": "+msg+"\n");
} catch (IOException ex){
} finally {
try{
socket.close();
} catch (Exception ex){}
}
}
}
}
Client
public class Client extends JFrame implements ActionListener {
private static JButton btnSend;
private static JButton btnConnect;
private static JTextArea txtMessages;
private static JTextField txtCurrentMessage;
private static JTextField txtServerPort;
private static JTextField txtServerName;
String hosts = "";
int ports;
Socket clientSocket = null;
BufferedReader in = null;
public static void main(String[] args) throws Exception {
}
private void listen() {
try {
in = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));
String msgIn;
while ((msgIn = in.readLine()) != null) {
System.out.println(msgIn);
txtMessages.append(msgIn+"\n");
}
}catch (IOException ez) {
}
}
public void connect(){
hosts = txtServerName.getText();
String strPort = txtServerPort.getText();
ports = Integer.valueOf(strPort);
try{
//Ja pieslēdzas
clientSocket = new Socket(hosts, ports);
btnSend.setEnabled(true);
txtMessages.append("U R connected!\n**************\n");
btnConnect.setEnabled(false);
txtCurrentMessage.setEnabled(true);
} catch (IOException ex){
txtMessages.append("Cannot connect.. \n");
}
}
public void send(){
try{
PrintStream PrintStrims = new PrintStream(clientSocket.getOutputStream());
String message = txtCurrentMessage.getText();
PrintStrims.println(message);
System.out.println(message);
} catch (IOException ex){
}
}
public void runForm() {
JFrame frame = new JFrame();
txtServerName = new JTextField();
txtServerName.setPreferredSize(new Dimension(150, 21));
txtServerPort = new JTextField();
txtServerPort.setPreferredSize(new Dimension(50, 21));
txtMessages = new JTextArea();
txtCurrentMessage = new JTextField();
txtCurrentMessage.setPreferredSize(new Dimension(350,21));
btnConnect = new JButton("Connect");
btnConnect.addActionListener(this);
btnSend = new JButton("Send");
btnSend.addActionListener(this);
JPanel pnlTop = new JPanel(new FlowLayout());
JPanel pnlBottom = new JPanel(new FlowLayout());
pnlTop.add(txtServerName);
pnlTop.add(txtServerPort);
pnlTop.add(btnConnect);
pnlBottom.add(txtCurrentMessage);
pnlBottom.add(btnSend);
JPanel pnlContent = (JPanel) frame.getContentPane();
pnlContent.setLayout(new BorderLayout());
pnlContent.add(pnlTop, BorderLayout.NORTH);
pnlContent.add(txtMessages, BorderLayout.CENTER);
pnlContent.add(pnlBottom, BorderLayout.SOUTH);
frame.setLayout(new BorderLayout());
frame.add(pnlTop, BorderLayout.NORTH);
frame.add(txtMessages, BorderLayout.CENTER);
frame.add(pnlBottom, BorderLayout.SOUTH);
frame.setSize(500, 400);
frame.setLocation(100, 100);
frame.setTitle("Ne pārāk labs čats");
frame.setResizable(false);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
txtServerName.setText("127.0.0.1");
txtServerPort.setText("5432");
btnSend.setEnabled(false);
txtCurrentMessage.setEnabled(false);
txtMessages.setEditable(false);
frame.setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == btnSend) {
if(!"".equals(txtCurrentMessage.getText()))
{
send();
txtCurrentMessage.setText("");
}
}
if (e.getSource() == btnConnect) {
connect();
listen();
}
}
}
